Fastening for meeting-rails of sashes



(No Model.)

H. T. KING.

FASTENING FOR MEETING RAILS OF SASHES.

Patented June 23, 1885...

UNITED STATES PATENT OFFICE.

HIE-AM T. KING, OF ROCHESTER, NEW YORK.

FASTENING FOR MEETING-RAILS OF SASHES.

SPECIFICATION forming part of Letters Patent No. 320,796, dated June 23, 1885.

Application filed May 8, 1884.

.To all whom it may concern:

Be it known that I, HIRAM '1. KING, of Rochester, Monroe county, New York, have invented certain new and useful Improvements in Sash-Locks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which- Figure 1 is a plan of the device applied to the meeting-rails of two sashes and in the locked position. Fig. 2 is a central vertical section of the same in line as w of Fig. 1. Fig. 3 is a similar section in line gm of Fig. 1. Fig. 4 is a horizontal section in line z zof Figs. 2 and 3. Fig. 5 is a plan of the washer used inside the lock. Fig. 6 is a detail view showing a plan of the washer G. Fig. 7 is an outside elevation of the catch on the outer sash.

My improvement relates to looks for the meeting-rails of sashes, and is of that kind where a swinging arm operated upon by acam engages with a catch to lock the parts together. The improvement is as follows:

A B show the meeting-rails of two sashes which slide up and down in the usual way.

0 is a base-plate attached on top of the inner rail, A, and D is a similar base-plate attached on top of the outer rail, B. The plate 0 is circular in form, and is hollow on its under side to make it light in weight. It has on one edge a circular groove or channel, a, extending but part of the way around, and at its ends are two sockets or depressions, a a setting back into the plate for the reception of the locking-pin, as will be presently described.

F is the cam or eccentric by which the looking action is produced. It consists of a head, d, which forms a finger-piece, and may be of any ornamental form, a circular eccentric, f, below the head, a square or equivalentlyformed shoulder, 9, below the eccentric, and a pin, h, below the shoulder, which forms the axis on which the device turns. The pin rests and turns in a socket, t, of the plate 0, and is held in place by a washer, k, riveted on its lower end. The pin rests on one side of the eccentric f, so that the latter has a throw from one side to the other as the device is turned.

E is the locking-lever, having at one end a cone-shaped socket or eye, E, which rests on top of the circular plate 0, and between it and (No model.)

a shoulder of the eccentric above, by which it is kept in place. The eccentric f rests in a bearing, Z, of the eye, and as the eccentric is turned in one direction or the other the eye and its lever will be correspondingly thrown out or in. The lever and eye are made hollow on the under side to make them light in weight. On the outer end of the lever is a square hook, j, which engages with the catch on the upper rail, as will presently be described.

in is a pin attached to the socket-piece E, projecting downward and resting in the groove a of the baseplate 0. As the socket-piece is thrown by the cam the pin runs around in the said groove, and at the end of the stroke in either direction the pin strikes into the depression a or a and is drawn back therein by the movement of the cam, thus locking the arm in place in the closed and the opened positions. When the pin is thus drawn into one of the cavities, the arm cannot be swung till the cam is turned back sufficiently to throw the pin out of the cavity, as any movement of the lever will only press the pin against the side of the cavity. The length of the groove a is such that the lever has a quarter-turn, so that when closed the lever locks with the catch and when opened it stands in line with the rail,'as indicated by the dotted lines, Fig. 1; and in both of these positions the lever is locked in place against any swinging movement till the cam is turned to operate it.

G is a washer, which rests on the square shoulder g of the cam and turns with it, and n is a coiled or other spring on the under side, which presses it up and holds it in contact with the under side of the eccentric f, and thus produces friction. Aportion of the periphery of the washer is cut out, leaving two shoulders, 0 0, which, coming in contact with the pin m as the cam is turned, carry the latter round so as to enter the cavity a or a. A sash-lock can be made effective without the use of the washer and the spring; but the latter are of advantage in insuring a more perfect action than would otherwise be attained.

The catch-plate D is provided with a circular inclined track or way, 1), up which the lever E rides when carried into place, and also with a raised horn, 7*, under which the lever rides, and against which on the outside the hook j strikes, and against which it draws when the lever is drawn back endwise by the cam. The bottom of the horn is inclined or wedgeshaped at its outer end, and the horn is also inclined on its outer side. \Vhen the lever enters, it rides up on the curved way, and is also guided in by the incline at the bottom of the horn, which centers it to place and causes the two rails to be drawn up or down to a common level, and the hook riding on the inclined outer side of the horn causes the outer rail to be drawn up in close contact with the inner one, so that no loose space will be left between them. When the rails are thus drawn together, there is such close contact that no instrument can be easily inserted between them, and, furthermore, the friction between the two rails is such that it materially removes the strain from the lock if any attempt is made to open the sash. One advantage of this lock is that the rails can be drawn together and held whether the loose space between them is greater or less, as the cam can be turned more or less to suit the circumstances of the case. In case there is but little space between the rails, the cam can be turned sufficiently to close the joint without turning it fully around. The sash thus secured cannot be easily opened by any outside means.

Having described my inventiomwhat I claim as new, and desire to secure by Letters Patent, is

1. In asash-lock, the combination of a basepiece having a circular groove in one edge, with depressions or cavities at its ends, a cam journaled to turn in the base-plate, and a lever provided with a socket resting between the base-plate and the cam, with a pin projecting down and resting in the groove of the baseplate, and so arranged, as described, as to lock in and engage with the depressions or cavities of the groove when thrown to the farthest extent, as set forth.

2. In a sash-lock, the combination of the baseplate having a circular groove in one edge, with cavities or depressions at the ends of the groove, a cam journaled to turn in the base-plate, a lever provided with a socket at one end resting upon and operated by the cam, and provided with a pin that rests in the groove of the base-plate, a washer provided with shoulders that rests upon the cam and acts upon the pin, and a spring beneath the washer, as shown and described, and for the purpose specified.

3. In a sash-lock, the combination of the baseplate 0, having groove a a cf, the cam or eccentric F, journaled to turn in the base plate, the lever E, having a socket that rests on the cam and is provided with a pin, m, that rests in the groove of the base-plate, and a plate, D, forminga catch provided with the inclined way 1) at its bottom and the inclined horn r at its top, between which the hook end of the lever rides in closing, as shown and described, and for the purpose specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

HIRAM T. KING.

WVi tnesses:

R. F. Osooon,

CHAS. F. SPENCER. 

